<ul class="list-group">	<li class="list-group-item {x2;if:$method == 'index'} active{x2;endif}">		{x2;if:$method == 'index'}首页		{x2;else}		<a href="index.php?{x2;$_app}-master">首页</a>		{x2;endif}	</li>	<li class="list-group-item {x2;if:$method == 'attachtype'}active{x2;endif}">		{x2;if:$method == 'attachtype'}文件类型		{x2;else}		<a href="index.php?{x2;$_app}-master-attachtype">文件类型</a>		{x2;endif}	</li>	<li class="list-group-item {x2;if:$method == 'files'}active{x2;endif}">		{x2;if:$method == 'files'}文件管理		{x2;else}		<a href="index.php?{x2;$_app}-master-files">文件管理</a>		{x2;endif}	</li></ul>